InChI=1S/C20H30O5S/c1-15(11-14-24-26(21,22)23)8-9-18-20(5,25-18)13-10-17-16(2)7-6-12-19(17,3)4/h8-11,13,18H,6-7,12,14H2,1-5H3,(H,21,22,23)/b9-8+,13-10+,15-11+